Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Yellow clover aphid on alfalfa: Pest not ruinous to state's alfalfa industry but production costs increased by frequent field inspections and treatments

Authors

R. C. Dickson
H. T. Reynolds

Authors Affiliations

R. C. Dickson is Associate Entomologist, University of California, Riverside; H. T. Reynolds is Assistant Entomologist, University of California, Riverside.

Publication Information

Hilgardia 9(7):4-15. DOI:10.3733/ca.v009n07p4a. July 1955.

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Abstract

By mid-May 1955 the populations of the yellow clover aphid—Therioaphis trifolii (Monell)—in alfalfa fields in the desert areas of California had dropped off to such an extent that many fields did not require treatment.

Dickson R, Reynolds H. 1955. Yellow clover aphid on alfalfa: Pest not ruinous to state's alfalfa industry but production costs increased by frequent field inspections and treatments. Hilgardia 9(7):4-15. DOI:10.3733/ca.v009n07p4a
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